Question

What is hyper-conjugation effect? How does it differ from resonance effect?

Write an application of hyper-conjugation effect.​

Answer 1

Answer:

In the formalism that separates bonds into σ and π types, hyperconjugation is the interaction of σ-bonds (e.g. C-H, C-C, etc.) ... The interaction between filled π or p orbitals and adjacent antibonding σ* orbitals is referred to as "negative hyperconjugation", as for example in the fluoroethyl anion: RADOM (1982).

The main difference between hyperconjugation and resonance is that hyperconjugation involves the interaction between a sigma bond and a p orbital or a pi bond whereas resonance involves the interaction between pi bonds. In a covalent compound, two major types of chemical bonds can be observed between atoms.

Hyperconjugation can be used to rationalize a variety of chemical phenomena, including the anomeric effect, the gauche effect, the rotational barrier of ethane, the beta-silicon effect, the vibrational frequency of exocyclic carbonyl groups, and the relative stability of substituted carbocations .

Answer 2

Answer:

•effect

Hyperconjugation is the stabilising interaction that results from the interaction of the electrons in a σ-bond (usually C-H or C-C) with an adjacent empty or partially filled p-orbital or a π-orbital to give an extended molecular orbital that increases the stability of the system.

• differ

In a covalent compound, two major types of chemical bonds can be observed between atoms. They are the sigma bond and the pi bond. A single bond is always a sigma bond. A double bond is composed of a sigma bond and a pi bond. However, both types of bonds are formed due to the overlapping between atomic orbitals. The term hyperconjugation and resonance are used to describe two methods involved in stabilizing a molecule. The main difference between hyperconjugation and resonance is that hyperconjugation involves the interaction between a sigma bond and a p orbital or a pi bond whereas resonance involves the interaction between pi bonds.  

•application

Applications of hyperconjugation Assignment Help. (1) Stability of alkenes : Hyperconjugation explains the stability of certain alkenes over other alkenes. ... Electron donating power in descending order due to the hyperconjugation. (6) Heat of hydrogenation : Hyperconjugation decreases the heat of hydrogenation

Explanation:

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